Foster SV and SVPC Series Safety Vent couplings are designed for maximum user and equipment safety.
Foster SV and SVPC Series couplings allow for safe and easy connection/disconnection under zero line
pressure to minimize the possibility of inadvertent
disconnection and potential hose whip.
The fully encapsulated non-marring models significantly reduce the risk of surface nicks and scratches. Ideal for use in paint booth applications or for air lines used around finished surfaces, such as fiberglass, painted metal or glass surfaces.
Material: Zinc-plated steel, Acetal Copolymer outside cover, Steel internals
Working Pressure: 300 PSIG; vacuum to 26"Hg
Body Sizes: 1/4" to 3/4" Industrial Interchange Design
Connection Sizes: 1/4" to 1" NPT; 1/4" to 3/4" Hose Barb
Interchangeability: Complies with ANSI/NFPA T3.20.14-1990, IS0 6150-B, & ISO 4414
Rated Pressure: 300 psi
Temperature Range (std seals): 0° to +150° F
Locking Device: Stainless Steel Balls
Force required to Connect: Less than 10 lbs
Operation: SV and SVPC Series Safety Vent couplers are nearly effortless to connect and great for hose use. They are also especially useful for single-hand operation when they are mounted to hard lines such as an overhead air drop.
Once inserted into the SV or SVPC socket, the plug is lightly gripped and will stay in place allowing the operator to use the same hand to slide the sleeve straight forward to the "on" position.
SV or SVPC Series sockets can also be used as a 3-way valve to turn off the flow of air and exhaust the downstream pressure without disengaging the plug. By turning and sliding the sleeve to the "exhaust" position, downstream air pressure is relieved but the plug remains locked in place. Turning and sliding the sleeve in the opposite direction allows air to flow again.
Foster SV or SVPC Series couplers are the ultimate solution to accidental disconnect hose whip dangers.
"SV","SVPC" Series (1/4", 3/8", 1/2", 3/4")
Pressure Drop/Flow Performance Curves @ 100 PSIG Inlet
Step  Insert Plug - Output is Zero Pressure
Step  Plug is Locked in Place, Now Restore Output Pressure
Step  System Under Pressure (both source and Output)
Step  Remove Pressure From Output
-- Acts as a Shut-Off Valve --
Step  Remove Plug - Output Pressure is Automatically Zero